What does 渋い mean?
渋い is a Japanese adjective meaning “astringent; bitter; puckery; rough” in English. It can also be translated as “austere, sour (look), stingy” depending on context. It is written as 渋い in kanji, しぶい in hiragana, and shibui in romaji. This word is part of JLPT N2 vocabulary.
Example sentence
僕的にはもっと地味ってか渋い服が欲しいんですけどね。
For my tastes, I'd prefer plainer, or rather, more tasteful clothing.